package com.itheima;

public class TestDemo01 {
    public static void main(String[] args) {
        String st = new String();
        System.out.println(st);
        char[] chs = {'a', 'b', 'c'};
        String s2 = new String(chs);
        System.out.println(s2);
        String s3 = new String("123");
        System.out.println(s3);
    }
}
